Tools like DupDetector make finding and removing duplicate images a much simpler and easier job. DupDetector can locate duplicate images of only 10 file formats, but these 10 formats are the most popular ones: JPG, GIF, BMP, PNG, TIF, PCX, TGA, WMF, EMF, PSP.
DupDetector is a utility for finding and removing duplicate and near duplicate images from your image collections. A useful tool for everyone who has large image collections. Even stock commercial collections are often littered with exact duplicates and multiple images only sharpened, brightened or with slight color modification). If you have large image collections, test them with DupDetector.
PhotoBatch does batch processing, format conversion and renaming of image files. Scripts of commands including input and output setup can be saved and loaded for reuse. A batch script may be run on a single image, on a folder, or on a list of files and folders. Script commands may be tested and run on a sample image.